单词 | formaldehyde |
释义 | formaldehyde[ fawr-mal-duh-hahyd, fer- ] / fɔrˈmæl dəˌhaɪd, fər- / SEE SYNONYMS FOR formaldehyde ON THESAURUS.COM noun Chemistry.a colorless, toxic, potentially carcinogenic, water-soluble gas, CH2O, having a suffocating odor, usually derived from methyl alcohol by oxidation: used chiefly in aqueous solution, as a disinfectant and preservative, and in the manufacture of various resins and plastics. Also called methanal. Compare formalin. Origin of formaldehyde1870–75; form(ic) + aldehyde; modeled on German Formaldehyd Words nearby formaldehydeform, formability, Formad's kidney, formal, formal cause, formaldehyde, formal equivalence, formalin, formalin pigment, formalism, formality Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for formaldehydeBritish Dictionary definitions for formaldehydeformaldehyde / (fɔːˈmældɪˌhaɪd) / nouna colourless poisonous irritating gas with a pungent characteristic odour, made by the oxidation of methanol and used as formalin and in the manufacture of synthetic resins. Formula: HCHOSystematic name: methanal Word Origin for formaldehydeC19: form (ic) + aldehyde; on the model of German Formaldehyd Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for formaldehydeformaldehyde [ fôr-măl′də-hīd′ ] n.A colorless, gaseous compound that is the simplest aldehyde, used for manufacturing melamine and phenolic resins, fertilizers, dyes, and embalming fluids and in aqueous solution as a preservative and disinfectant. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for formaldehydeformaldehyde [ fôr-măl′də-hīd′ ] A colorless gas having a sharp, suffocating odor. It is used in making plastics and, when dissolved in a solution of water and methanol, to preserve biological specimens. Chemical formula: CH2O. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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